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Abstract

Background: Adolescent tibial tubercle fractures are uncommon, complex, high-energy injuries. The use of lateral radiographs in isolation to diagnose and treat these injuries is the standard of practice. However, with a single 2-dimensional (2D) view, there may be a risk that the degree of injury can be underestimated. This study was performed to report on the outcomes of tibial tubercle fractures operatively treated, determine the utility of a single lateral x-ray to accurately document injury severity and pattern, delineate the role of advanced imaging and intraoperative arthroscopy/arthrotomy in injury treatment, and propose a new classification system of tibial tubercle fractures that accounts for the complex 3D nature of proximal tibial physeal closure, and recognizes the importance of intra-articular extension, providing guidance for intervention.

Conclusions: Tibial tubercle fractures represent high-energy injuries with potentially devastating complications such as compartment syndrome and/or vascular compromise. Intra-articular involvement is often missed with the use of plain x-ray and drastically underestimates injury severity. The use of preoperative CT scan or MRI should be utilized as adjunct to plain lateral radiograph. If intra-articular involvement is recognized preoperatively, arthroscopy or open arthrotomy should be utilized at the time of surgery. Our new classification system is rooted in the development of the proximal tibia, accounts for intra-articular involvement, and provides guidance for treatment.

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The Pediatric Orthopaedic Society of North America (POSNA)is a group of healthcare professionals, primarily pediatric orthopaedic surgeons, dedicated to advancing musculoskeletal care of children and adolescents. JPO is our official member journal. Like us on facebook and become a member today!

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